#1 operator n. (mathematics) a symbol or function representing a mathematical operation. wn
#2 operator n. [manipulator] an agent that operates some apparatus or machine; "the operator of the switchboard". wn
#3 operator n. someone who owns or operates a business; "who is the operator of this franchise?". wn
#4 operator n. [hustler, wheeler dealer] a shrewd or unscrupulous person who knows how to circumvent difficulties. wn
#5 operator n. a speculator who trades aggressively on stock or commodity markets. wn
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